Deep Plane Facelift Anatomy: Deep plane facelift anatomy involves the SMAS (Superficial Musculoaponeurotic System), facial retaining ligaments, and deep facial fat compartments. Understanding these structures is essential for achieving natural-looking results through proper tissue repositioning.

— DeepPlane.com Medical Advisory Board

Deep Plane Facelift Anatomy: Quick Facts

SMAS Layer
Key structure targeted
Facial Nerves
Carefully preserved
Retaining Ligaments
Released for mobility
Dissection Depth
Below SMAS layer
Blood Supply
Preserved for healing
Technique
Anatomically precise

Source: Clinical Studies & The Aesthetic Society

Medically reviewed by Medical Advisory BoardWritten by DeepPlane Editorial TeamUpdated on January 20268 min read

Deep Plane Facelift Anatomy

Why This Topic Matters

Understanding the anatomical layers involved in deep plane facelift surgery is essential for evaluating surgeon expertise and setting realistic expectations about what the procedure can achieve.

  • The SMAS layer is the key to lasting facelift results
  • Retaining ligaments determine how much tissue can be repositioned
  • Facial nerve anatomy dictates the safety of the dissection

A detailed visual guide to the facial layers and anatomical structures involved in deep plane facelift surgery.

Understanding Facial Anatomy

To understand why deep plane facelift produces superior results, it's essential to understand the layered anatomy of the face. The face consists of multiple distinct layers, each playing a crucial role in facial aging and rejuvenation.

The key to deep plane facelift's effectiveness lies in working beneath the SMAS layer, releasing the retaining ligaments, and repositioning the entire facial structure as a unified unit—rather than simply pulling on the skin.

The Five Layers of the Face

1

Skin (Epidermis & Dermis)

The outermost layer, consisting of the epidermis and dermis. Traditional facelifts often work primarily at this level, which is why results can appear "pulled" or unnatural.

2

Subcutaneous Fat

A layer of fat beneath the skin that provides facial volume and contour. This layer thins with age, contributing to a gaunt appearance.

3

SMAS (Superficial Musculoaponeurotic System)

The key layer in facelift surgery. The SMAS is a fibromuscular layer that connects the facial muscles to the skin. Deep plane facelift works beneath this layer, while SMAS facelifts work above it.

4

Deep Fat Compartments

Distinct pockets of fat beneath the SMAS that provide structural support. These compartments deflate and descend with age, causing midface volume loss.

5

Deep Fascia & Periosteum

The deepest layer, covering the facial bones and muscles. The retaining ligaments anchor the overlying tissues to this layer.

Retaining Ligaments

Retaining ligaments are fibrous structures that anchor the facial soft tissues to the underlying bone. In deep plane facelift, these ligaments are released to allow the face to be repositioned without tension on the skin.

Zygomatic Ligaments

Located over the cheekbone, these ligaments hold the midface in position. Releasing them allows the cheek fat to be lifted and repositioned.

Masseteric Ligaments

Anchor the lower face to the masseter muscle. Releasing these ligaments is essential for addressing jowls and the lower face.

Mandibular Ligaments

Located along the jawline, these ligaments contribute to jowl formation when they weaken with age.

Platysma-Auricular Ligaments

Connect the neck muscle (platysma) to the ear area. Important for neck rejuvenation in extended deep plane procedures.

Deep Plane vs. SMAS: Anatomical Difference

SMAS Facelift

  • • Works above the SMAS layer
  • • Skin is separated from SMAS
  • • SMAS is tightened (plication or SMASectomy)
  • • Retaining ligaments remain intact
  • • Limited midface improvement
  • • Results last 5-7 years

Deep Plane Facelift

  • • Works beneath the SMAS layer
  • • Skin stays attached to SMAS
  • • SMAS is released and repositioned
  • • Retaining ligaments are released
  • • Comprehensive midface rejuvenation
  • • Results last 10-15 years

Frequently Asked Questions

What is the SMAS layer?

The SMAS (Superficial Musculoaponeurotic System) is a fibromuscular layer that connects the facial muscles to the overlying skin. It's the key anatomical structure in facelift surgery.

Why are retaining ligaments important?

Retaining ligaments anchor the facial soft tissues to the underlying bone. Releasing them during deep plane facelift allows the surgeon to reposition the entire facial structure.

Is working in the deep plane more dangerous?

When performed by an experienced surgeon, deep plane facelift is actually safer in some respects because it preserves the blood supply to the skin.

Ready to Learn More?

Consult with a board-certified deep plane facelift specialist to understand how this technique can address your specific concerns.

Common Misconceptions

Myth: The SMAS is a single uniform layer

Fact: The SMAS varies in thickness across the face and has different characteristics in different regions. Surgeons must understand these variations for optimal results.

Myth: Facial ligaments should be preserved during facelift

Fact: Deep plane technique specifically releases retaining ligaments to allow natural tissue repositioning. This is key to achieving long-lasting, natural results.

Myth: All surgeons understand deep plane anatomy equally

Fact: Deep plane anatomy requires specialized training. Fellowship-trained facial plastic surgeons have the most comprehensive understanding of these structures.